No SeaTac tunnel controversy, airport operators taking to the air
Unlike Seattle and its Alaskan Way Viaduct replacement project, there will be no tunnel controversy in SeaTac--the Port of Seattle has opted for a bridge.
SeaTac City Council members approved April 12 an interlocal agreement with the Port for a bridge crossing over South 188th Street in the vicinity of 28th Avenue South. The aerial crossing would be part of the Port's South Access Road connecting to the state Route 509 Extension.
Of course, the SR-509 Extension has been delayed for years and no one can predict when it will be approved. SR-509 was slated to extend beyond its present dead end at South 188th Street to connect with Interstate 5. The connection was planned to expedite freight traffic between Seattle and the Kent Valley.
But, although much of the design work and right-of-way acquisition have been completed to the point where many consider the 509 project "shovel-ready," construction funding has been elusive. That leaves the freight truck-free SR-509 through Burien as a private freeway for Highline residents.